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ID: 4212262 pcs
thumb image of 2.1ct Trillion Facet Violet Blue Tanzanite (ID: 421226)
2.10 ct Tanzanite
7 x 6.7 mm
$ 244.00
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ID: 4579591 pcs
thumb image of 0.5ct Trillion Facet Light Pink Morganite (ID: 457959)
0.47 ct Morganite
5.8 x 5.7 mm
$ 9.87
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ID: 4375701 pcs
thumb image of 0.7ct Trillion Facet Sky Blue Topaz (ID: 437570)
0.72 ct Topaz
6.4 x 6.2 mm
$ 3.60
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ID: 4246911 pcs
thumb image of 1.5ct Trillion Facet Violet Blue Tanzanite (ID: 424691)
1.51 ct Tanzanite
7.8 x 7.5 mm
$ 174.37
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ID: 3140781 pcs
thumb image of 5.3ct Triangle Cabochon Multicolor Opal (ID: 314078)
5.30 ct Opal
22.4 x 11.9 mm
$ 212.00
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ID: 4212182 pcs
thumb image of 1.9ct Trillion Facet Violet Blue Tanzanite (ID: 421218)
1.93 ct Tanzanite
7.2 x 7 mm
$ 224.25
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ID: 4527311 pcs
thumb image of 15.8ct Trillion Cabochon Multicolor Ammolite (ID: 452731)
15.83 ct Ammolite
29.6 x 14.9 mm
$ 385.14
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ID: 3347602 pcs
thumb image of 8.9ct Trillion Rose-Cut Black Spinel (ID: 334760)
8.92 ct Spinel
10 x 9.8 mm
$ 44.60
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ID: 4415031 pcs
thumb image of 3.9ct Trillion Facet Bi-Color Ametrine (ID: 441503)
3.85 ct Ametrine
12.5 x 9.9 mm
$ 19.25
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ID: 4549512 pcs
thumb image of 16.4ct Trillion Cabochon Multicolor Fossil Coral (ID: 454951)
16.43 ct Fossil Coral
21.4 x 13 mm
$ 16.43
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ID: 4162371 pcs
thumb image of 4.1ct Trillion Facet Swiss Blue Topaz (ID: 416237)
4.14 ct Topaz
10.1 x 9.8 mm
$ 28.98
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ID: 2675564 pcs
thumb image of 18.3ct Trillion Rose-Cut Black Spinel (ID: 267556)
18.25 ct Spinel
9.8 x 9.6 mm
$ 91.25
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ID: 4211912 pcs
thumb image of 2.1ct Trillion Facet Violet Blue Tanzanite (ID: 421191)
2.11 ct Tanzanite
7.3 x 7.2 mm
$ 245.16
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ID: 4579611 pcs
thumb image of 0.6ct Trillion Facet Light Pink Morganite (ID: 457961)
0.56 ct Morganite
6.3 x 5.5 mm
$ 11.76
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ID: 3347542 pcs
thumb image of 8.3ct Trillion Rose-Cut Black Spinel (ID: 334754)
8.33 ct Spinel
10.1 x 9.8 mm
$ 41.65
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ID: 3631591 pcs
thumb image of 27ct Triangle Green Variscite (ID: 363159)
26.96 ct Variscite
23.7 x 22.8 mm
$ 134.80
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ID: 4346131 pcs
thumb image of 40.5ct Trillion Facet Bi-Color Ametrine (ID: 434613)
40.49 ct Ametrine
25.8 x 21.8 mm
$ 242.94
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ID: 4456802 pcs
thumb image of 2.6ct Trillion Facet Swiss Blue Topaz (ID: 445680)
2.62 ct Topaz
7.1 x 7.1 mm
$ 17.11
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ID: 42356410 pcs
thumb image of 5.6ct Trillion Facet Pinkish Rose Rhodolite Garnet (ID: 423564)
5.60 ct Rhodolite Garnet
5.2 x 5.2 mm
$ 44.80
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ID: 4375661 pcs
thumb image of 0.8ct Trillion Facet Sky Blue Topaz (ID: 437566)
0.81 ct Topaz
6.3 x 6.1 mm
$ 4.05
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ID: 4454541 pcs
thumb image of 3.7ct Trillion Facet Yellow Golden Citrine (ID: 445454)
3.69 ct Citrine
12 x 11.5 mm
$ 18.45
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Trillion Shaped Gems
When it comes to gemstones, shape and cut are are often used interchangeably. The reason is because the difference between the two isn't always obvious. Shape refers to the overall outline of a stone, while 'cut' refers the actual style, process or technique used to work the rough into finished gemstone pieces. Historically, a trilliant gem exhibits the basic trilliant design, featuring 43 facets cut into a triangular shape gemstone that has been worked into 1:1 ratio and cut with 43 facets. The 43 facets are based on the 'brilliant-cut' in order to maximize 'brilliance'. Like other brilliant cuts, the equilateral form of a well-cut trilliant gem should return a substantial degree of light and color to the eye. The trillion cutting style was originally introduced by the Asscher brothers (Asscher-cut) and was trademarked in 1962 by Henry Meyer Diamond Company of New York. Since the expiration of their 'trillion' patent, the term can be used to refer to all triangular shaped gems, even those which are not faceted.

Many trillions today are step-cut, scissor-cut, plain-cut, mixed-cut with undulating surfaces, and trillion gemstones are even cut en cabochon, featuring a flat bottom with a low or high dome depending on the type of gem. As long as the gemstone has a face-up outline or shape which resembles a triangle, then it can be described as a trillion-shaped gemstone. Gemstones like zircon, spinel, diamond, aquamarine, beryl and white sapphire are often cut as trillions to maximize brilliance, while darker gemstones such as tanzanite, spessartite garnet, rhodolite garnet and amethyst are given a trilliant cut in order to lighten and brighten color (rather than focusing on brilliance). Since most diamond-cut styles are modified for colored stones, many colored stone dealers use alternative terms that refer to shape rather than cut-style.
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart